Citizen Promaster Marine BN0150-10E Men's Watch • ISO Dive Watch 200 m • Eco-Drive Solar Movement

The Citizen Promaster Marine BN0150-10E is a professional men's dive watch from the renowned Promaster collection, fully compliant with the stringent ISO 6425 standard for diving watches. It is powered by the light-driven Eco-Drive calibre E168, which requires no battery: any light source — sunlight or artificial light — charges the integrated solar cell, ensuring continuous, reliable operation with no battery changes required. At full charge, the power reserve extends for several months.

The 44 mm stainless steel case features a screw-down crown and screw-down case back, providing water resistance to a depth of 200 metres. The scratch-resistant sapphire crystal offers outstanding durability, while the unidirectional rotating bezel enables precise measurement of dive times. Hands, indices and the 12 o'clock bezel marker are all coated with luminous material, ensuring legibility even in poor visibility underwater. The black dial with Arabic numerals and baton indices, combined with a black urethane strap, complete the sporty yet professional look.

Key Features of the Citizen BN0150-10E Watch

• ISO 6425-certified dive watch with 200 m water resistance, screw-down crown and unidirectional rotating dive bezel
• Eco-Drive Calibre E168: solar-powered by light, no battery replacement needed, long power reserve at full charge
• Sapphire crystal with high scratch resistance, plus luminous coating on hands, indices and bezel for optimal legibility

Care Instructions for Wristwatches

Care & Cleaning

• Daily: Wipe case and bracelet with a soft, dry cloth to remove dirt and perspiration.
• Water-resistant watches: Clean with mild soapy water and a soft brush, rinse, dry thoroughly.
  Important: Screw the crown down firmly beforehand!!!
• Not water-resistant: Clean only dry or slightly damp, do not use water or cleaning agents.
• Avoid: Harsh chemicals, perfume, cosmetics and heat.
• Leather straps: Do not soak, clean only slightly damp and allow to dry away from heat.
• Water resistance: Do not wear in the shower or bath, have it tested annually.
• Battery (quartz): Have a depleted battery replaced immediately.
• Mechanical watches: Service by a master watchmaker every 5 years.

Storage & Handling

• Store the watch separately, not in direct contact with other jewellery (risk of scratching).
• Place mechanical watches on a flat surface when winding, do not leave the crown pulled out.